Section 5
SEC. 5. The duties heretofore performed by the provincial supervisor in regard to the letting of contracts for provincial public works shall, after January first, nineteen hundred and six, be performed by the provincial "treasurer, with the approval of the provincial board, but all tenders for contracts for public works costing more than five hundred pesos shall be examined by the district engineer or his representative and his recommendation obtained before the same is signed by the contracting parties. No payments, partial or final, shall be made on such contracts without the certificate of the district engineer, or that of his duly authorized representative, specifying the work accomplished and that such payments are due. No contracts shall be entered into before funds equal to the estimated cost of such works have been appropriated therefor. In case the district engineer shall recommend the rejection of all bids, he may be authorized by the provincial board to take charge of the work and to prosecute the same in behalf of the province by day labor.